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Dimensional Fund Advisors LP Buys 448,848 Shares of ADTRAN Holdings, Inc. $ADTN - MarketBeatMarketBeat · Sat, 08 Aug 2026 07:36:16 GMTAdtran Holdings Inc (ADTN) Insider Buying: CFO Timothy Santo Pur - GuruFocusGuruFocus · Sat, 08 Aug 2026 07:23:37 GMTADTRAN (NASDAQ:ADTN) Lowered to Hold Rating by Wall Street Zen - MarketBeatMarketBeat · Sat, 08 Aug 2026 06:01:12 GMTADTRAN Holdings, Inc. (ADTN) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Shareholders to Contact the Firm to Learn More About the Investigation - ACCESS NewswireACCESS Newswire · Sat, 08 Aug 2026 04:39:09 GMTBronstein, Gewirtz & Grossman, LLC Encourages ADTRAN Holdings, Inc. (ADTN) Stockholders to Inquire about Securities Investigation - ACCESS NewswireACCESS Newswire · Fri, 07 Aug 2026 07:09:59 GMTADTRAN (NASDAQ:ADTN) Stock Rating Lowered by Zacks Research - MarketBeatMarketBeat · Thu, 06 Aug 2026 16:15:25 GMTAdtran Launches Mosaic One Fabric Enabling Operators to Create Ai Agents and Workflows - marketscreener.commarketscreener.com · Thu, 06 Aug 2026 14:08:40 GMTAdtran launches Mosaic One Fabric, empowering operators to build custom AI agents and workflows - afp.comafp.com · Thu, 06 Aug 2026 12:15:01 GMT